Home / 40,310.84-55,628-22,405.68

Finding the Fourth Proportional to 40,310.84, 55,628 and 22,405.68

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Solution

The fourth proportional to 40,310.84, 55,628 and 22,405.68 is: 30,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.84 : 55,628 = 22,405.68 : x
  2. Step 2: Convert to fraction form
    40,310.84/55,628 = 22,405.68/x
  3. Step 3: Cross multiply
    40,310.84x = 55,628 × 22,405.68
  4. Step 4: Simplify right side
    40,310.84x = 1,246,383,167.04
  5. Step 5: Solve for x
    x = 1,246,383,167.04/40,310.84
  6. Step 6: Final answer
    x = 30,919.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.